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<pre><span class="sourceLineNo">001</span><a name="line.1"></a>
<span class="sourceLineNo">002</span>/*<a name="line.2"></a>
<span class="sourceLineNo">003</span> * Copyright (C) 2011 Archie L. Cobbs. All rights reserved.<a name="line.3"></a>
<span class="sourceLineNo">004</span> *<a name="line.4"></a>
<span class="sourceLineNo">005</span> * $Id: EnumContainer.html 883 2014-05-07 02:45:34Z archie.cobbs $<a name="line.5"></a>
<span class="sourceLineNo">006</span> */<a name="line.6"></a>
<span class="sourceLineNo">007</span><a name="line.7"></a>
<span class="sourceLineNo">008</span>package org.dellroad.stuff.vaadin7;<a name="line.8"></a>
<span class="sourceLineNo">009</span><a name="line.9"></a>
<span class="sourceLineNo">010</span>import java.util.List;<a name="line.10"></a>
<span class="sourceLineNo">011</span><a name="line.11"></a>
<span class="sourceLineNo">012</span>import org.dellroad.stuff.java.EnumUtil;<a name="line.12"></a>
<span class="sourceLineNo">013</span><a name="line.13"></a>
<span class="sourceLineNo">014</span>/**<a name="line.14"></a>
<span class="sourceLineNo">015</span> * Container backed by the instances of an {@link Enum} type.<a name="line.15"></a>
<span class="sourceLineNo">016</span> *<a name="line.16"></a>
<span class="sourceLineNo">017</span> * &lt;p&gt;<a name="line.17"></a>
<span class="sourceLineNo">018</span> * Instances will auto-detect properties defined by {@link ProvidesProperty &amp;#64;ProvidesProperty} annotations (if any),<a name="line.18"></a>
<span class="sourceLineNo">019</span> * and will also pre-define the following properties:<a name="line.19"></a>
<span class="sourceLineNo">020</span> *  &lt;ul&gt;<a name="line.20"></a>
<span class="sourceLineNo">021</span> *  &lt;li&gt;{@value #NAME_PROPERTY} - {@link String} property derived from {@link Enum#name Enum.name()}&lt;/li&gt;<a name="line.21"></a>
<span class="sourceLineNo">022</span> *  &lt;li&gt;{@value #VALUE_PROPERTY} - type {@code T} property that returns the {@link Enum} instance value itself&lt;/li&gt;<a name="line.22"></a>
<span class="sourceLineNo">023</span> *  &lt;li&gt;{@value #ORDINAL_PROPERTY} - {@link Integer} property derived from {@link Enum#ordinal Enum.ordinal()}&lt;/li&gt;<a name="line.23"></a>
<span class="sourceLineNo">024</span> *  &lt;li&gt;{@value #TO_STRING_PROPERTY} - {@link String} property derived from {@link Enum#toString}&lt;/li&gt;<a name="line.24"></a>
<span class="sourceLineNo">025</span> *  &lt;/ul&gt;<a name="line.25"></a>
<span class="sourceLineNo">026</span> * &lt;/p&gt;<a name="line.26"></a>
<span class="sourceLineNo">027</span> *<a name="line.27"></a>
<span class="sourceLineNo">028</span> * @param &lt;T&gt; enum type<a name="line.28"></a>
<span class="sourceLineNo">029</span> * @see EnumComboBox<a name="line.29"></a>
<span class="sourceLineNo">030</span> */<a name="line.30"></a>
<span class="sourceLineNo">031</span>@SuppressWarnings("serial")<a name="line.31"></a>
<span class="sourceLineNo">032</span>public class EnumContainer&lt;T extends Enum&lt;T&gt;&gt; extends SelfKeyedContainer&lt;T&gt; {<a name="line.32"></a>
<span class="sourceLineNo">033</span><a name="line.33"></a>
<span class="sourceLineNo">034</span>    public static final String NAME_PROPERTY = "name";<a name="line.34"></a>
<span class="sourceLineNo">035</span>    public static final String VALUE_PROPERTY = "value";<a name="line.35"></a>
<span class="sourceLineNo">036</span>    public static final String ORDINAL_PROPERTY = "ordinal";<a name="line.36"></a>
<span class="sourceLineNo">037</span>    public static final String TO_STRING_PROPERTY = "toString";<a name="line.37"></a>
<span class="sourceLineNo">038</span><a name="line.38"></a>
<span class="sourceLineNo">039</span>    private static final PropertyDef&lt;String&gt; NAME_PROPERTY_DEF = new PropertyDef&lt;&gt;(NAME_PROPERTY, String.class);<a name="line.39"></a>
<span class="sourceLineNo">040</span>    @SuppressWarnings("rawtypes")<a name="line.40"></a>
<span class="sourceLineNo">041</span>    private static final PropertyDef&lt;Enum&gt; VALUE_PROPERTY_DEF = new PropertyDef&lt;&gt;(VALUE_PROPERTY, Enum.class);<a name="line.41"></a>
<span class="sourceLineNo">042</span>    private static final PropertyDef&lt;Integer&gt; ORDINAL_PROPERTY_DEF = new PropertyDef&lt;&gt;(ORDINAL_PROPERTY, Integer.class);<a name="line.42"></a>
<span class="sourceLineNo">043</span>    private static final PropertyDef&lt;String&gt; TO_STRING_PROPERTY_DEF = new PropertyDef&lt;&gt;(TO_STRING_PROPERTY, String.class);<a name="line.43"></a>
<span class="sourceLineNo">044</span><a name="line.44"></a>
<span class="sourceLineNo">045</span>    /**<a name="line.45"></a>
<span class="sourceLineNo">046</span>     * Constructor.<a name="line.46"></a>
<span class="sourceLineNo">047</span>     *<a name="line.47"></a>
<span class="sourceLineNo">048</span>     * @param type enum type<a name="line.48"></a>
<span class="sourceLineNo">049</span>     * @throws IllegalArgumentException if {@code type} is null<a name="line.49"></a>
<span class="sourceLineNo">050</span>     * @throws IllegalArgumentException if {@code type} has a {@link ProvidesProperty &amp;#64;ProvidesProperty}-annotated method<a name="line.50"></a>
<span class="sourceLineNo">051</span>     *  with no {@linkplain ProvidesProperty#value property name specified} has a name which cannot be interpreted as a bean<a name="line.51"></a>
<span class="sourceLineNo">052</span>     *  property "getter" method<a name="line.52"></a>
<span class="sourceLineNo">053</span>     * @throws IllegalArgumentException if {@code type} has two {@link ProvidesProperty &amp;#64;ProvidesProperty}-annotated<a name="line.53"></a>
<span class="sourceLineNo">054</span>     *  fields or methods with the same {@linkplain ProvidesProperty#value property name}<a name="line.54"></a>
<span class="sourceLineNo">055</span>     */<a name="line.55"></a>
<span class="sourceLineNo">056</span>    public EnumContainer(final Class&lt;T&gt; type) {<a name="line.56"></a>
<span class="sourceLineNo">057</span>        super(type);<a name="line.57"></a>
<span class="sourceLineNo">058</span>        this.setProperty(NAME_PROPERTY_DEF);<a name="line.58"></a>
<span class="sourceLineNo">059</span>        this.setProperty(VALUE_PROPERTY_DEF);<a name="line.59"></a>
<span class="sourceLineNo">060</span>        this.setProperty(ORDINAL_PROPERTY_DEF);<a name="line.60"></a>
<span class="sourceLineNo">061</span>        this.setProperty(TO_STRING_PROPERTY_DEF);<a name="line.61"></a>
<span class="sourceLineNo">062</span>        this.load(this.getExposedValues(type));<a name="line.62"></a>
<span class="sourceLineNo">063</span>    }<a name="line.63"></a>
<span class="sourceLineNo">064</span><a name="line.64"></a>
<span class="sourceLineNo">065</span>    /**<a name="line.65"></a>
<span class="sourceLineNo">066</span>     * Get the {@link Enum} values to expose in this container in the desired order.<a name="line.66"></a>
<span class="sourceLineNo">067</span>     *<a name="line.67"></a>
<span class="sourceLineNo">068</span>     * &lt;p&gt;<a name="line.68"></a>
<span class="sourceLineNo">069</span>     * The implementation in {@link EnumContainer} returns all values in their natural order.<a name="line.69"></a>
<span class="sourceLineNo">070</span>     * Subclasses may override to filter and/or re-order.<a name="line.70"></a>
<span class="sourceLineNo">071</span>     * &lt;/p&gt;<a name="line.71"></a>
<span class="sourceLineNo">072</span>     */<a name="line.72"></a>
<span class="sourceLineNo">073</span>    protected List&lt;T&gt; getExposedValues(Class&lt;T&gt; type) {<a name="line.73"></a>
<span class="sourceLineNo">074</span>        return EnumUtil.getValues(type);<a name="line.74"></a>
<span class="sourceLineNo">075</span>    }<a name="line.75"></a>
<span class="sourceLineNo">076</span><a name="line.76"></a>
<span class="sourceLineNo">077</span>    @Override<a name="line.77"></a>
<span class="sourceLineNo">078</span>    public &lt;V&gt; V getPropertyValue(T value, PropertyDef&lt;V&gt; propertyDef) {<a name="line.78"></a>
<span class="sourceLineNo">079</span>        if (propertyDef.equals(VALUE_PROPERTY_DEF))<a name="line.79"></a>
<span class="sourceLineNo">080</span>            return propertyDef.getType().cast(value);<a name="line.80"></a>
<span class="sourceLineNo">081</span>        if (propertyDef.equals(VALUE_PROPERTY_DEF))<a name="line.81"></a>
<span class="sourceLineNo">082</span>            return propertyDef.getType().cast(value);<a name="line.82"></a>
<span class="sourceLineNo">083</span>        if (propertyDef.equals(ORDINAL_PROPERTY_DEF))<a name="line.83"></a>
<span class="sourceLineNo">084</span>            return propertyDef.getType().cast(value.ordinal());<a name="line.84"></a>
<span class="sourceLineNo">085</span>        if (propertyDef.equals(TO_STRING_PROPERTY_DEF))<a name="line.85"></a>
<span class="sourceLineNo">086</span>            return propertyDef.getType().cast(value.toString());<a name="line.86"></a>
<span class="sourceLineNo">087</span>        return super.getPropertyValue(value, propertyDef);<a name="line.87"></a>
<span class="sourceLineNo">088</span>    }<a name="line.88"></a>
<span class="sourceLineNo">089</span>}<a name="line.89"></a>
<span class="sourceLineNo">090</span><a name="line.90"></a>




























































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